Two events A and B are such that P(A) = 0.3, P(B) = 0.4,P(A and B) = 0.12. Are A and B independent, and why (or why not)?

• A.Yes, because P(A) x P(B)=P(A and B).
• B.No, because P(A) + P(B) is not equal to P(A and B).
• C.Cannot say, because we don't know whether A and B are disjoint.
• D.Cannot say, because we need to know what A and B represent in order to figure out whether they are independent.